A Naturally Occurring Plant Cysteine Protease Possesses Remarkable Toxicity against Insect Pests and Synergizes Bacillus thuringiensis Toxin Mohan, Srinidi ; Ma, Peter W. K. ; Williams, W. Paul ; Luthe, Dawn S. Abstract Publication: PLoS ONE Pub Date: March 2008 DOI: 10.1371/journal.pone.0001786 Bibcode: 2008PLoSO...3.1786M